PRRT2 deficiency induces paroxysmal kinesigenic dyskinesia by regulating synaptic transmission in cerebellum.
PRRT2 deficiency induces paroxysmal kinesigenic dyskinesia by regulating synaptic transmission in cerebellum.
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PRRT2缺陷通过调节小脑突触传递诱发阵发性运动性运动障碍
DOI:
10.1038/cr.2017.128
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发表时间:
2018-01
期刊:
影响因子:
44.1
通讯作者:
Xiong ZQ
中科院分区:
文献类型:
--
作者:
Tan GH;Liu YY;Wang L;Li K;Zhang ZQ;Li HF;Yang ZF;Li Y;Li D;Wu MY;Yu CL;Long JJ;Chen RC;Li LX;Yin LP;Liu JW;Cheng XW;Shen Q;Shu YS;Sakimura K;Liao LJ;Wu ZY;Xiong ZQ
Mutations in the proline-rich transmembrane protein 2 (PRRT2) are associated with paroxysmal kinesigenic dyskinesia (PKD) and several other paroxysmal neurological diseases, but the PRRT2 function and pathogenic mechanisms remain largely obscure. Here we show that PRRT2 is a presynaptic protein that interacts with components of the SNARE complex and downregulates its formation. Loss-of-function mutant mice showed PKD-like phenotypes triggered by generalized seizures, hyperthermia, or optogenetic stimulation of the cerebellum. Mutant mice with specific PRRT2 deletion in cerebellar granule cells (GCs) recapitulate the behavioral phenotypes seen in Prrt2-null mice. Furthermore, recording made in cerebellar slices showed that optogenetic stimulation of GCs results in transient elevation followed by suppression of Purkinje cell firing. The anticonvulsant drug carbamazepine used in PKD treatment also relieved PKD-like behaviors in mutant mice. Together, our findings identify PRRT2 as a novel regulator of the SNARE complex and provide a circuit mechanism underlying the PRRT2-related behaviors.
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影响因子:
25
作者:
通讯作者:
--
DOI:
10.1074/mcp.m114.041012
发表时间:
2015-01
期刊:
Molecular & cellular proteomics : MCP
影响因子:
--
作者:
Keilhauer EC;Hein MY;Mann M
通讯作者:
Mann M
DOI:
10.1073/pnas.1311686110
发表时间:
2013-12-10
影响因子:
11.1
作者:
Ly, Romain;Bouvier, Guy;Feltz, Anne
通讯作者:
Feltz, Anne
影响因子:
3.6
作者:
Fureman, BE;Jinnah, HA;Hess, EJ
通讯作者:
Hess, EJ
影响因子:
30.8
作者:
Chen, Wan-Jin;Lin, Yu;Wu, Zhi-Ying
通讯作者:
Wu, Zhi-Ying